MC8640DHX1250HE Freescale Semiconductor, MC8640DHX1250HE Datasheet - Page 32

• Manufacturer Part Number: MC8640DHX1250HE
• Description: IC DUAL CORE PROCESSOR 1023-CBGA
• Manufacturer: Freescale Semiconductor

Specifications of MC8640DHX1250HE

• Processor Type: MPC86xx PowerPC 32-Bit
• Speed: 1.25GHz
• Voltage: 1.05V
• Mounting Type: Surface Mount
• Package / Case: 1023-FCCBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -

At recommended operating conditions with L/TV
Ethernet: Enhanced Three-Speed Ethernet (eTSEC), MII Management
8.2.3.1
Table 30
Figure 13
8.2.3.2
Table 31
32
At recommended operating conditions with L/TV
RX_CLK clock period 10 Mbps
RX_CLK clock period 100 Mbps
RX_CLK duty cycle
TX_CLK clock period 10 Mbps
TX_CLK clock period 100 Mbps
TX_CLK duty cycle
TX_CLK to MII data TXD[3:0], TX_ER, TX_EN delay
TX_CLK data clock rise time (20%–80%)
TX_CLK data clock fall time (80%–20%)
Note:
1. The symbols used for timing specifications herein follow the pattern of t
2. Guaranteed by design.
for inputs and t
transmit timing (MT) for the time t
general, the clock reference symbol representation is based on two to three letters representing the clock of a particular
functional. For example, the subscript of t
convention is used with the appropriate letter: R (rise) or F (fall).
provides the MII transmit AC timing specifications.
provides the MII receive AC timing specifications.
shows the MII transmit AC timing diagram.
MII Transmit AC Timing Specifications
MII Receive AC Timing Specifications
MPC8640 and MPC8640D Integrated Host Processor Hardware Specifications, Rev. 3
(first two letters of functional block)(reference)(state)(signal)(state)
TXD[3:0]
TX_CLK
TX_EN
TX_ER
Parameter
Parameter
Table 30. MII Transmit AC Timing Specifications
Table 31. MII Receive AC Timing Specifications
MTX
Figure 13. MII Transmit AC Timing Diagram
t
MTXH
clock reference (K) going high (H) until data outputs (D) are invalid (X). Note that, in
DD
DD
MTX
of 3.3 V ± 5%.
of 3.3 V ± 5%.
t
MTX
represents the MII(M) transmit (TX) clock. For rise and fall times, the latter
t
t
t
Symbol
MTKHDX
Symbol
MRXH
MTXH/
t
t
MTXF
MTKHDX
t
t
t
MRX
MTXR
t
t
MTXF
t
MRX
MTX
MTX
/t
t
2,3
MTX
2
MRX
3
2
2
for outputs. For example, t
(first two letters of functional block)(signal)(state) (reference)(state)
1
1
t
MTXR
Min
1.0
1.0
Min
35
—
—
1
—
—
35
Typ
400
Typ
40
400
—
—
—
5
40
—
MTKHDX
Freescale Semiconductor
symbolizes MII
Max
4.0
4.0
Max
—
—
65
15
65
—
—
Unit
Unit
ns
ns
ns
ns
ns
%
ns
ns
%